50-Watt medium power isolated DC-DC converters for data and telecommunications introduced by Murata

MANSFIELD, Mass., 2 Nov. 2011. Murata Power Solutions in Mansfield, Mass., is introducing the UWS series of 50-Watt medium power isolated DC-DC converters for a broad range of data and telecommunications applications. The UWS power electronics devices operate in temperatures from -40 to 85 degrees Celsius, and complies with UL/EN 60950-1 and CSA-C22.2 No. 60950-1 2nd edition for IT and commercial equipment safety standards.

The power supplies are available either in through-hole or surface-mount configurations, meet the DOSA standard for sixteenth brick dimensions of 1.31-by-0.91-by-0.36 inches, and accommodate an input range of 18 to 75 volts DC around a nominal 48 volts DC. Input to output isolation is rated at 2,250 volts DC so that the output is protected from spikes, transients and noise on the input, company officials say.

Three models are available that offer outputs of 3.3, 5, or 12 volts DC. As much as 54 Watts output is available without the need for any forced air cooling. The 12-volts DC unit suits regulated intermediate bus applications. The outputs are regulated to within +/- 0.125 percent. Also, the outputs may be trimmed +/- 10 percent, 3.3 volts DC model, or +10 percent to -20 percent for the 5 and 12 volts DC models allowing the user to compensate for voltage losses.

The UWS series has self-protection controls such as over-current, over-voltage, input under-voltage, and over-temperature shutdown. For systems requiring controlled startup and shutdown, an external remote on/off control may be driven by a switch, transistor or logic signal. This control can be selected as either positive or negative polarity.

For more information contact Murata Power online at www.murata-ps.com.